“But his delight is in the law of the LORD; And in his law doth he meditate day and night.”
‭‭Psalm‬ ‭1‬:‭2‬

Think about the possibilities God’s word exposes you to; firstly, in the main verse he talks as though it is possible to meditate on the word day and night- not morning and evening; meaning it seems possible to constantly have the word in your thoughts and it is, hear what God told Joshua:
“This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success.” Joshua‬ ‭1‬:‭8‬
The thought that it isn’t possible, didn’t come from God, the thought that one cannot meditate consistently and continuously on God’s word didn’t come from God. He made man, he made the mind and heart, and he reveals the potential of our minds to contemplate on the word of God continuously for our prosperity.
Accept what God says is possible and walk accordingly.

Bible Reading Plan: Exodus 20 and John 15